<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width,initial-scale=1, shrink-to-fit=no">
  <title>Title</title>
</head>
<body>

<nav class="navbar navbar-light bg-light">
  <a class="navbar-brand" href="#">Navbar</a>
</nav>


<div class="container">
  <div class="row">
    <div class="col-4 bg-info font-sass">
      <span class="text-primary">这里</span>的样式通过<span class="sass-s"> sass </span>设置
    </div>
    <div class="col-4 bg-danger plain-css">
      a这里是原生css样式
    </div>
    <div class="col-4 bg-info less-p3">
      2222这里是原生less - css样式
    </div>
    <div class="col-4">
      <div class="post-css">这里是postcss</div>
    </div>
    <div class="col-4 bg-warning a-stylus">
      这里使用了stylus
    </div>
    <div id="app"></div>
  </div>
</div>




</body>
</html>